Asphalt distributorIt refers to specialized vehicles for road maintenance, equipped with insulated containers, asphalt pumps, heaters, and spraying systems for applying asphalt. These vehicles are used primarily for applying hot asphalt, emulsified asphalt, residue oil, and other liquid asphalts during road construction. They can be employed in the construction of roads on highways, urban streets, airports, ports, and reservoirs. Large-capacity asphalt spreaders can also be used as means of transporting asphalt, and they are utilized in applications such as surface treatment using the asphalt penetration method, layering processes, mixing of materials on site, and the creation of asphalt-stabilized soil. Among the best-selling models in the Chengli series of road maintenance vehicles are the Dongfeng Xiaoduolika D6.Smart asphalt distributor(3–4 cubic meters), Dongfeng Dolika D7 intelligent asphalt distributor (6 cubic meters), Dongfeng Dolika D9 intelligent asphalt spraying vehicleSprayer truck(8–12 cubic meters), and so on. The Chengli maintenance vehicle series also includes vehicles for synchronous gravel sealing, slurry sealing, cement paste application, as well as crash protection buffers, among others.